Julien Macdonald took his inspiration from Britain’s Crown Jewels for his London Fashion Week show on Saturday, mixing intense colours with metallics on the signature sexy gowns that have made him a red carpet favourite. In the spectacular surroundings of the Foreign Office, the British designer showed figure-hugging evening gowns and cocktail dresses in sapphire blue, ruby red and emerald green, embellished with black embroidery, black lace and gun-metal crystals. “I went to the Tower of London and I saw the Crown Jewels, and I loved all the colours,” said Macdonald, a former creative director of Givenchy and ex-head of knitwear at Chanel, whose eponymous label is worn by A-listers including Beyonce. The Crown Jewels include crowns, sceptres, orbs, rings, swords, bracelets and robes of monarchs dating back to the 12th century.